Screwed coupling 3/4" x 15
Code: HD25B/15Product detailed description
Demountable compression coupling for polybutylene or copper pipes. It can be used for radiator heating, drinking water and underfloor heating.
Demountable couplings are used for connecting polybutylene pipe and copper pipe. It can be used for radiator heating, drinking water and underfloor heating. The internal jaws grip the pipe and prevent it from being pulled out. To disassemble, simply unlock the fitting with a special tool and remove the pipe.
Number of auxiliary inserts for installation HX60/15: 1 pc
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The most important facts about the HEPWORTH system that you should know for DIY installation. | ||
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Fully demountable system. | ||
| This means you can assemble the system, later disassemble it and reassemble it again. This is useful if you are not entirely sure about the heating installation. | |||
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Installation without any tools. | ||
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One of the biggest advantages of the system is tool-free installation. This means the pipe is simply pushed into the fitting and the internal jaw mechanism secures it in place. To disassemble, we simply unscrew the fitting, slide the jaws off the pipe, then reassemble and tighten the fitting again, and it is ready for use once more. |
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Universal use for all types of heating. | ||
| All couplings, tees, elbows and pipes are made of polybutylene, which means you can use them for radiator heating installations, underfloor heating, or domestic hot water (DHW) distribution. All diameters are backward compatible. | |||
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Pipe made of polybutylene. | ||
| Polybutylene - the oldest and, to date, the best-proven material for heating and water distribution. | |||
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Pipes with an oxygen barrier | ||
| All pipes are manufactured with an EVOH oxygen barrier, which prevents oxygen molecules from penetrating into the heating system. After a few years, oxygen causes corrosion of the boiler and degradation of the heating system. The oxygen barrier prevents this problem. | |||
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Polybutylene is one of the most hygienic materials | ||
| In terms of hygiene, polybutylene achieves the best results. |
Frequently asked questions
- How do I check that this part fits my HEPWORTH pipe? Compare the size (pipe diameter in mm or the inch thread) stated in this product’s name with the diameter of your pipe - the HEPWORTH system uses its own precisely defined range of sizes.
- Must the installation be carried out by a professional? Clips, anchors and wall plates are standard installation accessories also suitable for DIY assembly; however, we recommend having the connection of the pipework into a functioning heating or water system checked by a professional.
Additional parameters
| Category: | Threaded Couplings |
|---|---|
| Warranty: | 2 years |
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Push-fit Pipe fittings
Push-fit pipes and plumbing fittings are a great alternative to traditional fittings. A quick way to replace or repair plumbing installations around the home. They’re easy to install and don’t need to be soldered, making them suitable for all kinds of piping and fixtures in your home’s plumbing system.
You can create a water-tight seal on any pipes when you use push-fit waste connectors, so you’ll never need to worry about leaks again. Plastic push-fit plumbing fittings are usually demountable, whereas copper fittings are not.
Suitable for hot and cold water and central heating systems our Wavin Hep2O push-fit fittings are available in a range of sizes and come with a 50-year guarantee for extra peace of mind.

Underfloor Heating Pipe
Wavin Hep2O has a range of underfloor heating systems for new and existing floors and offers high quality, proven products that are widely available from plumbers and builders merchants nationwide. Underfloor heating systems consist of a series of pipework that is connected underneath the floor that is linked to the heating system. This allows heated water to pass underneath the floor, and the space above is more evenly heated than with other traditional forms of heating.



